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M.2 4-port Isolated RS-422 serial
The M.2-ICM422 family of cards feature high performance 16C950-class UARTs. Available in 4-port (M.2-ICM422-4), 2-port (M.2-ICM422-2) and 1-port (M.2-ICM422-1) versions, each port is capable of communication speeds as high as 3Mbps and has 128-byte deep transmit and receive FIFOs. Large FIFOs protect against data loss in multitasking operating systems, reduce CPU utilization, and improve data throughput, while reducing or eliminating inter-character or inter-packet pauses. The advanced integrated circuit with pre-scalar supports a wide variety of custom baud rates, and any rates not otherwise achievable can be supported via a custom factory-installed crystal oscillator (up to 12Mbps!).
Tru-Iso™ port-to-port and port-to-PC isolation provides a robust solution to common signal level and grounding issues when using long cables to connect computers and other powered devices – up to 500V of difference between pins and adjacent ports and 1500V between each port and the host computer.
Communication is possible either with custom application software, with off-the-shelf applications (such as HyperTerminal), or with provided samples and utilities, including WinRISC™ (“Windows Really Incredibly Simple Communication).
The serial ports on the device are accessed using a low-profile, latching, 5-pin Hirose connector. Optional breakout cables are available, and bring each port connection to a panel-mountable DB9-M connector.
|Interface||M.2 2260/2280 with B & M key|
|Number of serial ports||4, 2 or 1 port|
|Maximum baud rate||Up to 3M baud
Advanced-prescaler allows a wide variety of unusual baud rates to be achieved
Up to 12Mbps via custom crystal option
|FIFO||128-byte FIFO for each transmit & receive buffer|
|Isolation||Port-to-PC: 1500V peak (AC or DC)
Port-to-port: 500V peak (AC or DC)
|Power required||+3.3VDC @ 1.6W (typical)|
|Operating temperature||-40ºC to +85ºC|
|Operating humidity||5% to 95% noncondensing|
|ESD Protection||±15kV on all signal pins (IEC 61000)|
|M.2-ICM422-4||M.2 4-port Isolated RS-422 serial|
|M.2-ICM422-2||M.2 2-port Isolated RS-422 serial|
|M.2-ICM422-1||M.2 1-port Isolated RS-422 serial|
|CAB-M.2-ICM4S||Four port cable kit for M.2-ICM485-4. M.2-ICM422-4|
|CAB-M.2-ICM2S||Two port cable kit for M.2-ICM485-2. M.2-ICM422-2|
|CAB-M.2-ICM1S||One port cable kit for M.2-ICM485-1,. M.2-ICM422-1|
|M.2-HDW-KIT2||2mm mounting hardware kit|
|M.2-HDW-KIT2.5||2.5mm mounting hardware kit|